CN106661932B - Underwater drilling device and method for acquiring and analyzing soil samples of the bottom of a body of water - Google Patents
Underwater drilling device and method for acquiring and analyzing soil samples of the bottom of a body of water Download PDFInfo
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- CN106661932B CN106661932B CN201480078654.4A CN201480078654A CN106661932B CN 106661932 B CN106661932 B CN 106661932B CN 201480078654 A CN201480078654 A CN 201480078654A CN 106661932 B CN106661932 B CN 106661932B
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- 238000005553 drilling Methods 0.000 title claims abstract description 111
- 239000002689 soil Substances 0.000 title claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000003860 storage Methods 0.000 claims abstract description 41
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- 238000012545 processing Methods 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims description 13
- 238000011156 evaluation Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000011065 in-situ storage Methods 0.000 claims description 2
- 230000004308 accommodation Effects 0.000 claims 1
- 230000007723 transport mechanism Effects 0.000 claims 1
- 238000011835 investigation Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
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Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors
- E21B25/18—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors the core receiver being specially adapted for operation under water
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/14—Racks, ramps, troughs or bins, for holding the lengths of rod singly or connected; Handling between storage place and borehole
- E21B19/143—Racks, ramps, troughs or bins, for holding the lengths of rod singly or connected; Handling between storage place and borehole specially adapted for underwater drilling
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels, core extractors
- E21B25/10—Formed core retaining or severing means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/0007—Equipment or details not covered by groups E21B15/00 - E21B40/00 for underwater installations
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/02—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil
- E21B49/025—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil of underwater soil, e.g. with grab devices
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/12—Underwater drilling
- E21B7/124—Underwater drilling with underwater tool drive prime mover, e.g. portable drilling rigs for use on underwater floors
Abstract
The present invention relates to an underwater drilling apparatus and method for obtaining and analyzing soil samples of soil of a body of water. An underwater drilling device with a basic frame is lowered in a body of water and placed on the soil of the body of water. A drill rod, which is formed from at least one pipe-shaped drill rod element, is drilled into the soil of the body of water in a first drilling step using a drilling drive, which is mounted so as to be vertically movable on the base frame, wherein a drill core is accommodated in a receptacle in the pipe-shaped drill rod element. The receptacle with the drill core is stored at a storage site of the second storage area at the base frame. At least one further drilling step is then performed with the further drill rod element. At least one physical and/or chemical property of the drill core is determined by means of at least one sensor device, which is arranged in the surrounding region of the drill hole axis at the basic frame. The data determined in this case are stored in a data processing device together with data relating to the storage location of the drill cores in the second storage area.
Description
Technical Field
The invention relates to an underwater drilling device for obtaining and analyzing soil samples of the soil of a body of water, according to the preamble of claim 1, with: a base frame configured for descent in a body of water and for erection on soil of the body of water; a drill drive for rotationally driving a drill rod, which is formed from a pipe-shaped drill rod element, wherein the drill drive is mounted so as to be movable vertically along a drilling axis between a lower drill hole opening and an upper return position; a first storage area on the base frame for storing individual pipe-shaped drill rod elements for building the drill rod, wherein receptacles for drill cores are each releasably fastened in the drill rod elements; a second storage area at the base frame for storing a receptacle with a core obtained as a soil sample; a conveying mechanism with which individual drill rod elements can be conveyed from the first storage region to the drilling axis for forming the drill rod; and a delivery mechanism for delivering the receptacle with the drill core from the drill rod and for storing the same at a certain storage location in the second storage area.
The invention furthermore relates to a method for obtaining and analyzing soil samples of the soil of a body of water according to the preamble of claim 9, in which method: an underwater drilling device with a basic frame descends in a water body and is placed on soil of the water body; drilling a drill rod, which is formed from at least one pipe-shaped drill rod element, into the soil of the body of water in a first drilling step, using a drilling drive, which is mounted so as to be vertically movable on the base frame, wherein a drill core is accommodated in a receptacle in the pipe-shaped drill rod; the receptacle with the drill core is removed from the drill rod by means of a removal device and stored at a storage site of a second storage area on the base frame; and subsequently at least one further drilling step is carried out, wherein a second drill rod element with a receptacle for a drill core is conveyed to the drill rod by means of the conveying mechanism and a further drilling of the drill rod is carried out by means of the drill drive.
Background
Underwater boring devices of this type and methods of this type originate, for example, from WO 2012/000077 a1 or US 7,380,614B 1. In this known underwater core drilling method, drilling holes corresponding to the length of the drill rod element are produced step by step. In each drilling step, the core formed in the pipe-shaped drill rod is received with a core catcher, removed from the drill rod and stored in a storage area at the basic frame of the drilling device. By repeating the core drilling method several times, a large number of drill cores can be obtained as soil samples and stored in the storage area of the drilling device. The core allows very good conclusions about the structure of the soil of the body of water.
In order to analyze the soil structure of a body of water, it is necessary in this known prior art to lift the entire drilling device from the soil of the body of water and transport it from the body of water to a supply ship (Versorgungsschiff) or to a supply platform. Where individual cores can be sampled, further studied and analyzed. The taking and analyzing of soil samples is very time consuming. The high time consumption, especially in the case of methods carried out in open sea, is also associated with very high costs, since the hourly or daily rate of prices (Tagess ä tze) for supply ships with the necessary personnel is very high. The daily price rate for such supply vessels can amount to several 10000 euros up to over 100000 euros per day.
A method for investigating the soil of a body of water is known from WO 2013/188903 a1, in which the electrical conductivity and the magnetic properties of the soil are detected along a borehole hole by means of a sensor device. For this purpose, the sensor is moved along the borehole cavity wall. However, two principle method steps are required for reliable measurement. First a borehole cavity is created and subsequently a measurement is carried out. When drilling a borehole hole and when removing the soil material of the borehole from the borehole hole, there is furthermore the fundamental problem that soiling can occur between the individual soil layers (Verschmierung). This makes it difficult to reliably determine the layer structure of the soil of the water body.
Another method for analyzing the soil of a body of water is from US 4,043,404 a. In this known method, the drilling cavity is produced by means of a special drilling tool having a cylindrical housing. An accommodating container is arranged in the columnar shell and used for accommodating a soil sample. However, the receiving space for receiving the soil sample is limited to the boring tool located in the boring cavity. Furthermore, the acquisition of soil samples (which have a significantly smaller diameter than the borehole diameter) is costly and requires special sample receivers.
In drilling methods at land, it is known to study drill cores directly at the drilling site.
DE 69501539D 2 discloses a method and a device for detecting radioactivity at a core drill. A sensor device is arranged on the surface directly at the drilling device, said sensor device being able to determine the radioactive emission at the drill core.
Disclosure of Invention
The object of the present invention is to provide an underwater drilling device and a method for obtaining and analyzing soil samples of the soil of a body of water, with which soil samples can be obtained and analyzed both reliably and in a time-and cost-effective manner.
The invention is solved on the one hand by an underwater drilling device with the features of claim 1 and on the other hand by a method with the features of claim 9. Preferred embodiments of the invention are given in the respective dependent claims.
The underwater drilling device according to the invention is characterized in that at least one sensor means is arranged in the region around the drilling axis at the basic frame, which sensor means is configured for determining at least one physical and/or chemical property of the drill core, and that data processing means are provided, which are configured for storing the determined data about the at least one physical and/or chemical property of the drill core and the data about the storage location of the drill core in the second storage region.
The basic idea of the invention is to use an underwater drilling device to obtain drill cores during a consumable core drilling method, as in methods known from the prior art of this type. This thus obtained core can be analyzed in detail after lifting from the water body floor and can be used to produce precise geological profiles, in particular in the case of a large number of sample boreholes performed at different locations.
An important aspect of the invention is that the end of the drill hole is not waited for when the start of the drill core is analyzed. Instead, first data about the properties of the core and in particular about the structure of the core can already be acquired during the drilling process while the core is being transported out on the drill rod. In particular, when exploring soil resources, such first analysis of certain parameters allows the conclusion that further drilling at a point continues to be meaningful or should be interrupted. The drilling that is not successfully desired can thus be determined and ended in advance, which saves time and costs.
Furthermore, it is possible to determine already promising drill cores or particularly interesting drill cores during the drilling process. After lifting the underwater drilling device with the drill core, the particularly useful drill core can then be specifically investigated and analyzed first. Conclusions about the location or type and manner of further sample boreholes can thus be made more quickly.
In a preferred embodiment of the invention, a data transmission means is provided, by means of which the measured data can be transmitted to a spaced-apart central unit (Zentrale). The data transfer can be performed wirelessly or by wire by means of a data transfer mechanism. This allows for example to analyze the core before being supplied to the ship or at a remote central facility, while the sample drilling continues to be performed.
A particularly effective method execution is achieved according to a further development of the underwater drilling device according to the invention in that the data processing means has an evaluation unit, in which the decision criteria are stored and which is designed to make a decision about continuation or interruption of drilling on the basis of the stored decision criteria. What can be set as a criterion in particular is a minimum or maximum value for a certain physical or chemical variable, which is particularly important for the decision about continuing or interrupting the drilling. Conclusions about, for example, the electrical conductivity of the drill core or about the inductive properties of the drill core can thus indicate the presence or absence of soil resources, for example, special metals. Such a criterion can be defined by a test method carried out beforehand or also by the result of previous experience with drilling. The decision criterion depends decisively on the respective type of the targeted soil resource sought. If, for example, a certain characteristic value is not reached at a certain drilling depth, it can be economically sensible to interrupt further drilling at the investigation point and continue at another point. A comparison with the previous measured values of the core drill can also be carried out in the data processing means. It can thus be determined, for example, whether people are approaching or departing from a soil resource, such as a lumpy sulfide, ore or oil deposit (Vorkommen).
Due to the embodiment according to the invention, it is not necessary, for example, in this case to withdraw the drilling device from the body of water in order to analyze the drill core. The underwater drilling device can instead be retained in the body of water and placed elsewhere with the supply vessel.
The sensor device can in principle be constructed and arranged in any type and manner. According to an advantageous embodiment of the invention, the at least one sensor means is annular and arranged in the region above the opening of the borehole cavity. The drill hole opening can be a drill hole closing element or another component for stabilizing the opening at the drill hole. By arranging the sensor means in a ring, it is possible to detect the drill core directly upon removal from the drill hole in a comprehensive and preferably contactless manner. The sensor device can be designed such that the measurement takes place without contact also through the wall of the tube-shaped receptacle, for example by interaction with a magnetic or electromagnetic field. This means that, for example, an increased or reduced proportion of oil in the rock can significantly change its electromagnetic resonance behavior and its conductivity.
In principle, a suitable sensor means can be selected according to the set search for a certain soil resource. Optical sensors or sensors for measuring radioactivity can also be provided. According to a preferred embodiment of the invention, the sensor device is designed to measure inductivity (Induktivit ä t), electrical conductivity, capacity (Kapazit ä t) and/or other physical or chemical variables. In particular, various types of sensors can also be arranged in the annular housing, so that the examination and evaluation of various characteristic variables can be carried out simultaneously.
Furthermore, it is advantageous according to one embodiment of the invention for the receptacle to be designed in the form of a core line trap (Kernrohrf ä nger) which has a connection for the removal device at its upper end. The core line catcher can in this case be formed in particular as a thin-walled line made of metal or synthetic material, in which the inner remaining soil region is pushed as a drill core into the receiving space of the core line catcher when the pipe-shaped drill rod is drilled. The drill core can be fixed in the channel-shaped receptacle by means of a corresponding closure device or other retaining means. After a further drilling step corresponding to the length of the drill rod element, the receptacle with the drill core enclosed therein can be pulled out of the drill rod by the removal device and transported to a second storage area, wherein the receptacle with the drill core is lowered at a specific, provided storage location of the second storage area. After the lowering, the removal device can be released from the receptacle, so that after a further drilling step, a further receptacle with the drill core can be removed.
In this case, it is expedient according to a further development of the invention for the removal device to have a winch with a hoisting cable, at the free end of which a locking device is arranged, which interacts with the connecting device at the receptacle for the drill core. The locking means can in this case be in particular a hook assembly which engages into a connecting means, for example in the form of a shackle, at the channel-shaped receptacle. In this way, a form-fitting connection can be formed for the removal of the receptacle with the drill core. However, other connection methods, for example electromagnetic connection by arranging corresponding electromagnets, are also conceivable.
A further preferred embodiment of the invention provides that the base frame is connected to the supply vessel via an offshore umbilical. The marine umbilical can be provided here not only for the supply of energy, in particular electrical energy and hydraulic fluid, but also for data lines for data communication. Furthermore, the umbilical at sea can also be designed as a hoisting cable, with which the underwater drilling device can be lowered and raised again in addition to the supply function.
The object set forth at the outset is achieved in the method according to the invention in that at least one physical and/or chemical property of the drill core is determined by means of at least one sensor device (which is arranged in the region around the drilling axis on the base frame) and the data determined in this way are stored in the data processing device together with data relating to the storage location of the drill core in the second storage region. The method according to the invention can be implemented in particular with the previously described underwater drilling device.
The advantages described before are obtained when the method is performed.
A preferred method variant is based on the invention in that a decision is made as to continuation or interruption of the drilling on the basis of the determined data relating to at least one physical and/or chemical property of the core, while the drilling device continues to be located in the body of water on the soil of the body of water. The determination is then preferably made here by the underwater drilling device itself by an evaluation unit in the data processing means or by remote transmission of data by a spaced-apart central means, for example on the supply vessel or on a site at land.
In this way, the incorrect drilling can be recognized early and the underwater drilling device can be used in a time-and cost-effective manner.
Drawings
The invention is further elucidated below in terms of a preferred embodiment, which is schematically shown in the attached drawings. In the drawings:
fig. 1 shows a schematic perspective view of an underwater drilling device according to the invention;
fig. 2 shows a schematic side view of the underwater drilling device according to fig. 1; and
fig. 3 shows a schematic representation with a large number of sample boreholes.
Detailed Description
The structure and function of the underwater drilling device 10 according to the present invention is explained in connection with fig. 1 and 2 according to the present invention. The underwater drilling device 10 comprises a box-shaped basic frame 12, which is constructed from steel frames. In the central region of the basic frame 12, a vertically oriented drill guide 24 is provided, along which the drill drive 20, together with a tensioning mechanism 22 for tensioning the drill rod element 32, is supported and driven vertically movably along the drill axis 21. The drill drive 20 is additionally displaceable perpendicular to the drill axis 21 in a horizontal direction along the transverse rail 23 away from the drill axis 21. The drill drive 20 can be used here as a component of a conveying device 38 in order to grip and guide the stored drill rod elements 32, which are not shown in the first storage region 14 of the base frame 12, into the drilling axis 21. The transport device 38, which is only schematically indicated, can have a further actuating device in order to grip the vertically oriented, stored drill rod elements 32 and to transport them to the drilling axis 21 in a known manner.
To form drill rod 30, a new drill rod element 32 is coupled to an already existing drill rod element 32 by means of a screw connection. In fig. 1, only a single drill rod element 32 is shown, which is introduced into the soil 5 of the body of water in the first drilling step. In the case of this initial drill rod element 32, a drill bit 31 with a soil-removing cutting tool is provided at the lower end. When the pipe-shaped drill rod element 32 is drilled, a cylindrical core is formed from the actual soil material. The core is accommodated in a tube-shaped receptacle 34 which is arranged in the interior of the drill rod 30.
In order to remove the tube-shaped receptacle 34 with the drill core arranged and held therein, the drill drive 20 is first moved out of the drill axis 21. The lifting cable 43 of the removal device 40 is then moved into the region of the drilling axis 21 by pivoting the lever device 41. At the lower, free end of the hoisting ropes 43, a sleeve-shaped locking mechanism 44 is provided. The hoisting ropes 43 extend from a winch 42 fixed laterally at the base frame 12 via a lower articulated roller 45 to an upper deflection mechanism 46 of the run-out mechanism 40. The hoisting rope 43 turned a plurality of times at the frame is let out downwards by the winch 42, wherein the locking mechanism 44 is in engagement at the hoisting rope 43 with the connection mechanism 36 at the end of the upper part of the sleeve-shaped receptacle 34. The connection is established in such a way that the receptacle 34 with the drill core can be pulled out of the drill rod 30 in an upward direction. The sleeve-shaped receptacle 34 with the drill cores is then conveyed laterally by the removal device 40 to the second storage area 15 at the base frame 12 and stored therein. Also in the case of the second storage area 15, a storage section like a warehouse is not further shown for reasons of clarity. In the second storage region 15, the sleeve-shaped receptacles 34 with the drill cores located therein are vertically stored in the holding device, so that the drill cores can be transported for further investigation together with the underwater drilling device 10 to a supply vessel, not shown, after the end of the drilling operation.
For the preliminary investigation and analysis of the drill core, a ring-shaped sensor mechanism 50 is arranged directly above the drill hole opening 18 (at which the tensioning unit 17 is arranged for holding the drill rod 30) concentrically to the drill axis 21. The sensor device 50 is designed with a contactless sensor for determining the physical and/or chemical properties of the drill core. Furthermore, a data processing device 52 is provided, in which data relating to the individual measurements of the drill cores can be stored. At the same time, the data processing means 52 can also be used to store position data and, in particular, a storage location at which the respective drill core is stored in the second storage area 15. This allows targeted use of drill cores, which are of particular interest for further investigation on the basis of the first field analysis and the data transmitted beforehand by the data processing means 52, when the drill cores are subsequently analyzed further.
After this first drilling step with a fixed drill core, the removal device 40 is moved forward again from the drilling axis 21, so that the drill drive 20 with the new drill rod elements 32 can then be moved from the first storage region 14 back into the drilling axis 21. A new drill rod element 32 can thereafter be coupled to the upper drill rod element 32 of the drill rod 30. The drill rod 30 can finally be drilled into the soil of the body of water 5 in one further drilling step, for the length of the drill rod element 32. In this case, a new core is formed, which can be removed from the drill rod 30 in accordance with the method described above and can be stored again in the second storage region 15. Additional drilling steps can then be carried out accordingly (as long as this is desired).
Fig. 3 schematically shows the determination of soil resource inclusions 7 in the soil 5 of a body of water by means of an underwater drilling device 10 according to the invention and a method according to the invention.
The underwater drilling device 10 is first placed on the soil 5 of the body of water in order to complete the first drill hole 8.1. A progressive drilling is then carried out in connection with the acquisition and investigation of the drill core, as described previously in connection with fig. 1 and 2. The underwater drilling device 10 according to the invention does not determine data about the soil resource inclusions 7 in the field when directly analyzing the drill cores acquired during the first drilling 8.1. Accordingly, the first drilling 8.1 is carried out up to the maximum achievable drilling depth, which is illustrated by the drill rod 30 with in the present case four drill rod elements 32.
After removal of the drill rod 30, the underwater drilling device 10 can be placed in the second position in order to perform the second drilling 8.2. In the exemplary embodiment shown, the presence of soil deposit 7 is already detected by sensor device 50 after the first drilling step. After the second drilling step, upon completion of the second drilled hole 8.2, it can be determined when the core is investigated in situ, in the region of which the soil deposit 7 ends again in this depth position. Since this can be determined immediately by the evaluation unit, the continuation of the second borehole 8.2 can be ended. The underwater drilling device 10 can thereafter be put into operation again for further drilling 8.3, 8.4, 8.5 and 8.6.
It can be seen from the exemplary embodiment according to fig. 3 that the drilling is carried out by direct analysis of the drill core by the underwater drilling device 10, for example, the drilling ends early on leaving the determined soil resource deposit 7, as is done in the boreholes 8.2, 8.3, 8.4 and 8.5. A time-and thus cost-effective method for determining soil resource deposits 7 in the sea can thereby be carried out overall.
Claims (9)
1. Underwater drilling device for obtaining and analyzing soil samples of the bottom of a body of water, with
A base frame configured for lowering in a body of water and for building on the soil of said body of water,
a drill drive for rotationally driving a drill rod which is built up from pipe-shaped drill rod elements, wherein the drill drive is mounted so as to be movable vertically along a drilling axis between a lower drill hole opening and an upper return position,
a storage area at the base frame for storing individual pipe-shaped drill rod elements for building the drill rod, wherein receptacles for drill cores are each releasably held in the drill rod elements and the storage area is used for storing receptacles with obtained drill cores as soil samples,
-a conveying mechanism with which individual drill rod elements can be conveyed from the storage region to the drilling axis for forming the drill rod, and
a removal device for removing the receptacles with cores from the drill rods and for storing them at a storage location in the storage area,
wherein the content of the first and second substances,
-at least one sensor means is arranged on the basic frame, configured for determining at least one physical and/or chemical property of the core bit, the at least one sensor means being annular and arranged concentrically to the drilling hole aperture opening, and
-on the basic frame there is arranged a data processing means configured for storing measured data about at least one physical and/or chemical property of the drill core and data about the storage site of the drill core in the storage area, and
the determination of the at least one physical and/or chemical property is carried out contactlessly and in situ by the wall of the receptacle during the retrieval of the soil sample.
2. An underwater drilling device according to claim 1,
wherein the content of the first and second substances,
a data transmission unit is provided, by means of which the measured data can be transmitted to a separate central unit.
3. An underwater drilling device according to claim 1,
wherein the content of the first and second substances,
the data processing means has an evaluation unit in which judgment criteria are stored and which is designed to make a judgment about continuation or interruption of the drilling on the basis of the stored judgment criteria.
4. An underwater drilling device according to claim 1,
wherein the content of the first and second substances,
the sensor mechanism is configured to measure inductance, electrical conductivity, capacity, and/or other physical or chemical variables.
5. An underwater drilling device according to claim 1,
wherein the content of the first and second substances,
the receptacle pipe is designed in the form of a core pipe catcher, which has a connection for the removal device at the upper end thereof.
6. An underwater drilling device according to claim 1,
wherein the content of the first and second substances,
the removal device has a winch with a hoisting cable, at the free end of which a locking device is arranged, which interacts with a connecting device at the receptacle for the drill core.
7. An underwater drilling device according to claim 1,
wherein the content of the first and second substances,
the basic frame is connected to the supply vessel by an umbilical at sea.
8. Method for obtaining and analyzing a soil sample of the bottom of a body of water with an underwater drilling device according to claim 1, in which method
The underwater drilling device with the basic frame is lowered in a body of water and placed on the soil of the body of water,
drilling a drill rod consisting of at least one pipe-shaped drill rod element into the soil of the body of water in a first drilling step by means of a drilling drive which is vertically movably supported at the base frame, wherein a drill core is formed and accommodated in an accommodation in the pipe-shaped drill rod element,
the receptacle with the drill core is transported out of the drill rod by means of a transport device and stored at a storage site of a storage area at the base frame, and
at least one further drilling step is then carried out, wherein a further drill rod element with a receptacle for a core is transported from the storage region to the drill rod by means of a transport mechanism and a further drilling of the drill rod is carried out by means of the drilling drive,
wherein the content of the first and second substances,
-determining at least one physical and/or chemical property of the core bit by means of at least one sensor means, and
-storing the data determined in this case in a data processing device together with data relating to the storage location of the drill cores in the storage area.
9. The method of claim 8, wherein the first and second light sources are selected from the group consisting of,
wherein the content of the first and second substances,
a determination is made as to whether to continue or discontinue the drilling based on the determined data regarding the at least one physical and/or chemical property of the core drill while the underwater drilling device continues to be located in the body of water on the body of water soil.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2014/059760 WO2015172818A1 (en) | 2014-05-13 | 2014-05-13 | Underwater drilling device and method for obtaining and analysing soil samples of the bed of a body of water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106661932A CN106661932A (en) | 2017-05-10 |
| CN106661932B true CN106661932B (en) | 2020-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480078654.4A Active CN106661932B (en) | 2014-05-13 | 2014-05-13 | Underwater drilling device and method for acquiring and analyzing soil samples of the bottom of a body of water |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US9909377B2 (en) |
| EP (1) | EP3117068B1 (en) |
| JP (1) | JP6307177B2 (en) |
| CN (1) | CN106661932B (en) |
| CA (1) | CA2944062C (en) |
| ES (1) | ES2729345T3 (en) |
| WO (1) | WO2015172818A1 (en) |
Families Citing this family (8)
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|---|---|---|---|---|
| JP6813990B2 (en) * | 2016-08-24 | 2021-01-13 | 古河機械金属株式会社 | Submarine deposit mining and exploration methods, as well as submarine deposit mining and exploration bases, submarine deposit exploration equipment and fluorescent X-ray analyzers |
| AU2018299229B2 (en) * | 2017-07-11 | 2023-08-24 | Mbi Produits De Forage Inc. | Core tube displacer for long reach drilling machines |
| CN107965317B (en) * | 2017-12-14 | 2023-04-14 | 中国科学院海洋研究所 | ROV-based all-dimensional underwater short-distance drilling machine sampler and sampling method thereof |
| GB2591680B (en) * | 2018-05-24 | 2021-12-01 | Benthic Usa Llc | Dual rotary elevating geotechnical drill |
| CN113242929A (en) | 2018-12-20 | 2021-08-10 | 包尔机械有限公司 | Underwater drilling apparatus and method for obtaining a drilling core from the bottom of a body of water |
| ES2888924A1 (en) * | 2020-06-29 | 2022-01-10 | Geociencias Y Exploraciones Marinas S L | Machine and procedure for underwater soundings (Machine-translation by Google Translate, not legally binding) |
| CN113295453B (en) * | 2021-04-27 | 2022-11-11 | 中交华南勘察测绘科技有限公司 | Soil sampling device and sampling method |
| CN113605851B (en) * | 2021-08-27 | 2023-03-10 | 山东省地质矿产勘查开发局第一地质大队（山东省第一地质矿产勘查院） | Rope core-taking off-axis anti-inclination drilling tool |
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Also Published As
| Publication number | Publication date |
|---|---|
| CA2944062A1 (en) | 2015-11-19 |
| CN106661932A (en) | 2017-05-10 |
| ES2729345T3 (en) | 2019-10-31 |
| WO2015172818A1 (en) | 2015-11-19 |
| CA2944062C (en) | 2018-11-06 |
| EP3117068A1 (en) | 2017-01-18 |
| JP2017519130A (en) | 2017-07-13 |
| EP3117068B1 (en) | 2019-03-06 |
| US9909377B2 (en) | 2018-03-06 |
| US20170152719A1 (en) | 2017-06-01 |
| JP6307177B2 (en) | 2018-04-04 |
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